<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>已经激活</title>
    <link type="text/css" rel="stylesheet" href="/css/index.css"/>
    <style>
        .title{
            font-size: 5vw;
        }
    </style>
<body>
<h1 class="title">您已经激活过了！</h1>
</body>
</html>